Spray gun



FIG. 1 is a perspective view of a spray gun showing our new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an enlarged view of the encircled portion 9 in FIG. 3.

The broken lines, areas within the broken lines and unshaded portions of the article throughout the drawings depict features of the spray gun that form no part of the claimed design. The dot dash dot broken lines surrounding the detail areas in FIGS. 3 and 9 denote the boundaries of the detail areas and form no part of the claim design. 

CLAIM The ornamental design for a spray gun, as shown and described. 